When Jacob Allen Malcolm was born in 1854, in Scotland, Oakland, Brant, Ontario, Canada, his father, Hugh Malcolm, was 23 and his mother, Nancy J. Moore, was 22. He married Ada Elizabeth Lumsden on 1 January 1880, in Brantford, Ontario, Canada. They were the parents of at least 1 son and 3 daughters. He died on 11 March 1893, in Oakland, Brant, Ontario, Canada, at the age of 39.
Scottish: from the Gaelic personal name Maol-Choluim ‘devotee of (Saint) Columba’.
Irish (Ulster): Anglicized form of Gaelic Ó Maolcholuim ‘descendant of the devotee of Saint Columba’ (Irish Colum Cille, literally ‘dove of the church’). In Ireland the personal name is often spelled Colm; in Scotland it has become Calum.